Fallos del tipo CWE-119

3506 resultados

Corrupção de memória genérica

Fraqueza genérica que descreve quando software escreve dados fora dos limites esperados de um buffer ou estrutura de memória, sobrescrevendo dados adjacentes. Permite ao atacante corromper dados críticos, executar código arbitrário ou derrubar a aplicação.

Ejemplo

Um programa C que copia uma string do usuário para um array fixo sem validar comprimento: strcpy(buffer, user_input) em um buffer de 64 bytes, quando o input tem 200 caracteres. Os dados transbordados sobrescrevem variáveis, ponteiros ou endereços de retorno na pilha.

Cómo mitigar

Use funções seguras de cópia (strncpy, strlcpy, memcpy com tamanho validado), implemente validação de entrada e comprimento antes de qualquer operação de escrita em buffer, e ative proteções de compilador como stack canaries e ASLR. Em linguagens modernas (Rust, Go), o gerenciamento automático de memória elimina essa classe de bugs.

CVE-2025-4255MEDIUMPCMan FTP Server RMD Command buffer overflowEPSS 2.2%CVE-2021-1300CRITICALCisco SD-WAN Buffer Overflow VulnerabilitiesEPSS 2.2%CVE-2026-7248CRITICALD-Link DI-8100 CGI Endpoint tgfile.htm tgfile_htm buffer overflowEPSS 2.2%CVE-2021-1479HIGHCisco SD-WAN vManage Software VulnerabilitiesEPSS 2.1%CVE-2017-6633—A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker EPSS 2.1%CVE-2022-32934HIGHThe issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.7, macOS Ventura 13, macOS Monterey 12.6. A rEPSS 2.1%CVE-2025-2621CRITICALD-Link DAP-1620 storage check_dws_cookie stack-based overflowEPSS 2.1%CVE-2021-1301CRITICALCisco SD-WAN Buffer Overflow VulnerabilitiesEPSS 2.1%CVE-2020-13520HIGHAn out of bounds memory corruption vulnerability exists in the way Pixar OpenUSD 20.05 reconstructs paths from binary USD files. A speciallyEPSS 2.1%CVE-2021-20204CRITICALA heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databasEPSS 2.1%CVE-2019-11925—Insufficient boundary checks when processing the JPEG APP12 block marker in the GD extension could allow access to out-of-bounds memory via EPSS 2.1%CVE-2022-29465HIGHAn out-of-bounds write vulnerability exists in the PSD Header processing memory allocation functionality of Accusoft ImageGear 20.0. A speciEPSS 2.1%CVE-2025-2619CRITICALD-Link DAP-1620 Cookie storage check_dws_cookie stack-based overflowEPSS 2.1%CVE-2025-2618CRITICALD-Link DAP-1620 Path api set_ws_action heap-based overflowEPSS 2.1%CVE-2020-13571CRITICALAn out-of-bounds write vulnerability exists in the SGI RLE decompression functionality of Accusoft ImageGear 19.8. A specially crafted malfoEPSS 2.0%CVE-2017-9639—An issue was discovered in Fuji Electric V-Server Version 3.3.22.0 and prior. A memory corruption vulnerability has been identified (aka impEPSS 2.0%CVE-2020-15158HIGHHeap buffer overflow in libIEC61850EPSS 2.0%CVE-2022-3550MEDIUMX.org Server xkb.c _GetCountedString buffer overflowEPSS 2.0%CVE-2025-7911HIGHD-Link DI-8100 jhttpd upnp_ctrl.asp sprintf stack-based overflowEPSS 2.0%CVE-2020-3283HIGHCisco Firepower 1000 Series SSL/TLS Denial of Service VulnerabilityEPSS 2.0%